542893 has 4 divisors (see below), whose sum is σ = 584668. Its totient is φ = 501120.

The previous prime is 542891. The next prime is 542911. The reversal of 542893 is 398245.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21609 + 521284 = 147^2 + 722^2 .

It is a cyclic number.

It is not a de Polignac number, because 542893 - 2¹ = 542891 is a prime.

It is a d-powerful number, because it can be written as 5² + 4⁷ + 8⁶ + 2¹⁸ + 9 + 3⁷ .

It is a Duffinian number.

It is a plaindrome in base 15.

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20868 + ... + 20893.

It is an arithmetic number, because the mean of its divisors is an integer number (146167).

2⁵⁴²⁸⁹³ is an apocalyptic number.

It is an amenable number.

542893 is a deficient number, since it is larger than the sum of its proper divisors (41775).

542893 is a wasteful number, since it uses less digits than its factorization.

542893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41774.

The product of its digits is 8640, while the sum is 31.

The square root of 542893 is about 736.8127306175. The cubic root of 542893 is about 81.5776919828.

The spelling of 542893 in words is "five hundred forty-two thousand, eight hundred ninety-three".